Dust-collector.



A. T. NOE.

DUST COLLECTOR.

APPLICATION FILED MA1L28, 1908:

918,897. Patented Apr.20, 1909.

$ 1 1 ucn foz UNITED STATES PATENT OFFICE.

. AMON T. NOE, OF PARNASSUS, PENNSYLVANIA, ASSIGNOR TO ELECTRICRENOVATOR MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

DUST-COLLECTOR.

To all whom it may concern:

Be it known that I, AMoN T. N OE, acitizen of the United States,residingat l arnassus, in the county of Westm'oreland and State ofPennsylvania, have invented certain new and useful Improvements inDust-Collectors, of which the following isa specification.

My invention relates to'dust collectors, and more articularly to devicesof this character esigned for use in connection with pneumaticrenovating apparatus, such as is commonly employed in house cleaning.

The present invention relates to certain improvements inthe type of dustcollector illustrated in my prior application Serial Number 393,936,filed September 21st, 1907.

The primary object of the invention is to provide a dust collector whichshall be so constructed as to effectively prevent the escape of dusttherefrom but from which ac-- cumulations of dust may be quickly andreadily removed. A further object of the invention is to rovide im rovedmeans for delivering the ust laden air into the collector.

With the above and other objects in view my invention consists in theconstruction and arrangement hereinafter described and illustrated inthe accompanying drawings in which- Figure 1 is'a central longitudinalsection through my improved dust collector, complete. Fig. 2 is a persective' view of one of the supporting frames ereinafter described. Fig.3 1s a side elevation of the removable end member of the. dust collectorcasing. Fig. 4 is a central longitudinal section through one of theparts hereinafter described.

Referring to the drawings in detail my improved dust collector comprisesa casing 1,

preferably cylindrical, the'walls of which are foraminous and which mayconsist either of Wire gauze or as shown of perforated sheet metal. Theupper endof the casing 1 is closed by means of an end plate 2 having a ISpecification of Letters Patent.

Application filed March 28, 190B.

Patented April 20, 1909.

Serial No. 423,903.

responding lugs and are screw threaded at one end to receive thumb nuts8 by means of which the two ends of the casing are secured together.

The end plate 2 is provided with a series of internally projecting,annular, concentric ribs 9, the urpose of which will be hereinafterdescribed. Secured to the ring 5 and projecting upwardly and inwardlytherefrom are a plurality of arms 12 connected at their upper end by asmaller ring 11. The arms 12 are provided on their upper surface with aseries of notches or steps 13, the purpose of which will now bedescribed. Restmg in these notches are a plurality of concentricallyarranged supporting frames oneinner frame being the shortest, but thetop of all of the frames lying substantially'in the same plane andsomedistance below the end plate 2.

Alternating with the frames above 'described is a second set or seriesof similar frames com rising upper and lower rings '15 connected y bracerods 15*. The upper rings 15 are held in position by means of theannular ribs 9 on the end late 2.

4 Secured to one end of .t e casing as at 17 is one end'of a continuousweb or fabric 16,

which fabric is preferably of closely woven though orous material, andis 100 ed back and fort around theends of the a ove describedalternating frames. As will be seen from Fig. 1 this web orfabric assesover the tops of the rings 10 and un er the bottom edges of, the rings15'thereby forming a support for the latter and holding them up in suchposition that their upper ends abut against the top late 2. The innerend of the fabric is secured as at 18, to the flange 3 depending fromthe top plate, and rovided with a groove to accommodate a suitable tiewire or the like. It will therefore be seen that the two sets of framescause the tubular web or fabric to assume such shape as to form a seriesof annular concentric chambers of tapering form, having porous wallssome of which, as 23, open upward, while the others,

a Et -wiH-be obsessed heweversthati which open: uphwardahave heeommmiieehem withthereby. The result of the em loyment of these floatingframes is that y removing the lower end ring of the-casing, the entiredust collecting structure can be readily removed and disconnected,whenever it is desired to clean or renew the same.

The lower end of the casing 1 is closed by means of the removablebowl-shaped bottom 19 fitted with looking cams 2O cooperating withprojections 20 formed on the ring 5. Projecting upwardly from the centerof this bottom 19, and preferably formed integral therewith is a 0st 21which when the bottom is in its osition in the casing projects well upinto t e innermost chamber of the series. At its upper end this postcarries a comcal spreader 22 or baflie plate hereinafter referred to.Also secured to the flange 3 and depending below the same is an annularflap 25 formed of some flexible material, which flap aids in preventingthe leakage of dust past the flange 3. Fitted within the, opening whichthe flange 3 surrounds is one end of a conduit 26, the other end ofwhich is adapted to be connected with the discharge from any suitablefan or pump and thus serves to deliver dust laden air into the casing.It will be seen therefore that the dust laden air entering the innermostchamber through the conduit 26 impinges against the spreader 22 at thelower end .of this chamber and is thereby deflected and caused to spreadthrough the bottom part of the casing from which it difiuses upward intothe annular chambers 24, the dust being retained by the walls of fabricand the air filtering through the same and escaping through the outerwalls of the casing. It is to be noted that the dust is collected in thechambers which open downwardly the other chambers being entirely closed.This construction results in the dust all accumulating on one side ofthe fabric and in one end of the dust collector. Itwill, therefore, beapparent that by ently tapping or jarring the casin all of t e entrappeddust will fall into t e bowl-shaped bottom 19 which may then be removedand em tied.

he end plate 2 is not rigidly secured to the casing 1.-but can slidefreely therein, and hence, by screwing up the thumb nuts 8 and thusdrawin in theend plate the lower ends of the partitlons 15 will beforced against the loops of the fabric in which they rest and thisputsend. maintain thefabrie under terms n.

stamens-teases. that i, have provided 5 v{dustcollector.v' rhich issimple to construct, v andzwhiehmay. be very'easily and quickly Icleaned-,an'dsit is tho ht the numerous 'advantages thereof will bereadily appreciated by those skilled in the art. I

, What I claim is:

1. A dust collector comprising an outer cylindrical casing having porouswalls, a plurality of separate and independent skeleton framesconcentrically disposed therein, each frame comprising a pair of endrings spaced apart and connected by brace rods, a filtering sackstretched alternately over the upper rings and under the lower rings ofsaid frames to provide a series of annular dust collecting chambers allof which open toward the lower end of the casing, a removable closurefor said lower end, and a delivery conduit for dustladen air leadingthrough the upper end of the casing and discharging centrally thereof.

2. A dust collector comprising a series of annular, concentric chambers,means for delivering dust-laden air into one end of the innermostchamber, and a conical spreader located at the other end of saidchamber, against which the current of incoming air impmges.

3. A dust collector comprising an outer foraminous casing, a pluralityof frames nested therein one within the other, a filtering sackstretched over said frames and cooperating therewith .to form a seriesof annular dust collecting chambers all of which open toward the lowerend of the casing, a conduit for discharging dust-laden air through theupper end of the casing, and a deflector within the casing opposite andin line with the said conduit.

4. A dust collector comprising an outer foraminous casing, a pluralityof frames nested therein one within the other, a filtering sackstretched over said frames and cooperating therewith to provide a seriesof concentric annular dust collecting chambers all of which open towardthe lower end of the casing, a removable closure for said end, adeflector carried by said closure and disposed within the casing, and aninlet for dust-laden air discharging through the opposite end of thecasing in line with said deflector- 5. A dust collector comprising anouter foraminous casing having a closure at the upper end provided witha central inlet opening for dust-laden-air, a removable closure for theopposite end of the casing provided with an upwardly projecting spoutcarryin a conical deflector at its end situated in line with the saidinlet opening, frames nested one within the other in said casing and afiltering sack looped back and forth over said frames to provide aseries of annular concentric'dust collecting chambers, all of which opentoward that end of the casing carrying the removable closure.

(i. A dust collector comprising an outer foraminous casing,concentrically arranged frames therein nested one within the other,-afiltering sack looped about said frames and cooperating therewith toprovidea series of concentric annular dust collecting chambers all ofwhich open toward the lower end of the easing, a removable closure forsaid end, a

conical deflector located centrally within the casing, and an inletconduit for dust-laden air discharging througlfthe opposite end of thecasing in line with the said deflector.

7. A dust collector comprising an outer fora minous casing having anupper end plate formed with a central intake opening for dust-laden air,provided with an internally projecting'fiange, frames nested one withinthe other in said casing, a tubular filtering fabric 100 ed back andforth over-said frames to PIOVlt e a series of concentric annular dustcollecting chambers, all of which open toward the lower end of thecasing, one end of said tubular fabric enveloping and secured to thesaid internally projecting flange on the upper end plate, and aremovable endplate for the lower end of the casing. '8. A dust collectorcomprising an outer collecting chambers, alfoflwhich open toward 7 thelower end of the casing, one end of said tubular fabric enveloping andsecured to the said internally projecting flange on the end plate, aremovable end-plate for the lower end of the casing provided with aninwardly projecting spout, and a conical deflector on the end of saidspout facing the said intake opening 1 In testimony whereof I havea'llixed my signature in presence of two witnesses.

AM ()N T. NOE.

Witnesses:

A. H. KAUFMAN, Rom. F. DILWORTH.

